Insight into the corrosion mitigation performance of three novel benzimidazole derivatives of amino acids for carbon steel (X56) in 1 M HCl solution

Yousif, Qahtan A.; Fadel, Zainb; Abuelela, Ahmed M.; Alosaimi, Eid H.; Melhi, Saad; Bedair, Mahmoud A.

doi:10.1039/d3ra01837g

Cited by 25 publications

(6 citation statements)

References 84 publications

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“…In order to comprehend the inhibitory phenomena on the steel surface and identify the low E ads locations on the surface, MC and MD simulations were carried out. This allowed identification of the preferred adsorption sites and geometry of DHSiMF and DHSiB compounds either in the neutral or protonated form 72 – 74 . By optimizing the entire system, different forms of energies for DHSiMF and DHSiB inhibitors on the Fe (1 1 0) surface in the simulated corrosive fluid were determined.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and applications of novel Schiff base derivatives as corrosion inhibitors and additives for improvement of reinforced concrete

Gad,

Abbas,

Bedair

et al. 2023

Sci Rep

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The studied Schiff-base compounds in this work are multitasked investigated as corrosion inhibitors and also, to improve the physical and mechanical properties of reinforced concrete. The efficiency inhibition of the two novel Schiff-base compounds named (DHSiMF) and (DHSiB) for corrosion of carbon-steel in aqueous media of 1 M HCl was assessed via electrochemical methods and loss in weight. FT-IR, 1H-NMR spectra and elemental analysis were used to confirm the structure of such compounds. It was found to have successful inhibition even at low concentrations in tested media, as an increase in inhibitor concentration led to an improvement in the inhibition efficiency. The weight loss results clearly demonstrate that DHSiMF of C-steel in 1 M HCl has a higher inhibition efficiency than DHSiB, with a maximum inhibition efficiency (85%) attained at 1 × 10–2 M from DHSiMF. Electrochemical experiments likewise revealed the same order, but with a maximal inhibitory efficiency of 98.1%. The addition of inhibitors to the corrosive media dramatically changed the anodic Tafel constants (βa) and cathodic Tafel constants (βc), indicating a mixed type nature. Electrochemical polarization curves illustrated the functions of mixed-type inhibition and the action of adsorption matching with the Langmuir adsorption isotherm. The ∆Gads values for DHSiMF and DHSiB at temperatures (ranging from 303 to 333 K) are − 34.42 kilojoule/mole to − 37.51 kilojoule/mole. These values indicate that the compounds’ adsorption types are chemo-physical adsorption. X-ray diffraction (XRD) and Scanning electron microscopy (SEM) experiments were used to check the existence of the protection layer on the surface of carbon steel by analyzing the morphologies of the corrosion effects and the formed chemical compositions of the corrosion outcomes. For the concrete, the findings suggest that the chemical reaction that takes place between the DHSiMF and DHSiB and the concrete mix will result in an increase in the flexural strength, the compressive strength, and the indirect tensile strength of the concrete that is made of the gravel and dolomite aggregate.

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Section: Resultsmentioning

confidence: 99%

Synthesis and applications of novel Schiff base derivatives as corrosion inhibitors and additives for improvement of reinforced concrete

Gad,

Abbas,

Bedair

et al. 2023

Sci Rep

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“…In the Bode plot, the impedance values at low frequencies (10 −1 Hz) reflected the barrier capacity of the shield, 33 and the resistance values of La 1.96 Sr 0.04 Cu 0.98 Co 0.02 O 4 , La 1.97 Sr 0.03 CuO 4 , La 2 CuO 4 , and pure epoxy coatings both decreased in order at 48 and 96 h of corrosion in 3.5 wt % NaCl solution (Figure 6c,d), which was consistent with the pattern in the Nyquist curves. The phase angle of each coating is shown in Figure 6e,f.…”

Section: Morphologies and Structuresmentioning

confidence: 99%

Synthesis and Mechanism of Co²⁺/Sr²⁺ Codoped Magnetic Lanthanum Cuprate with Excellent Corrosion Resistance

Tian,

Chen,

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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The special structure of perovskite-like compounds allows the existence of some open spaces in the crystals that play an important role in their crystal function enhancement and can accommodate active oxygen, which helps to solve some problems in the field of corrosion prevention. The magnetic lanthanum cuprate was obtained through the doping of Co2+ and Sr2+, and compared with La2CuO4 and epoxy resin, its corrosion resistance was improved by 215.2 and 566.7%, respectively. The micromagnetic field in the crystal interfered with the state of motion of the electrons and prolonged their transport path. High concentration doping and substitution of unequal states led to the formation of oxygen vacancy defects, which could trap active oxygen molecules and inhibit cathodic corrosion reactions. The unique alternating interlayer structure of perovskite-like compounds was conducive to the release of Cu2+, thus forming a more stable passivator on the surface of the coating. La1.96Sr0.04Cu0.98Co0.02O4 had both magnetic properties and structural advantages, which enhanced the shielding property of epoxy resin and expanded the application of perovskite-like compounds in the field of corrosion prevention.

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“…Corrosion inhibitors, like heterocycle compounds, slow the corrosion process when applied to a corrosive medium in small amounts; they are considered an effective and cost-efficient technique. Many recent studies have used this strategy to develop corrosion control methods . An inhibitor’s effectiveness depends on several elements, such as its solubility, reaction to the corrosive medium, and effective centers that can interact with the metallic surface.…”

Section: Introductionmentioning

confidence: 99%

“…Many recent studies have used this strategy to develop corrosion control methods. 8 An inhibitor’s effectiveness depends on several elements, such as its solubility, reaction to the corrosive medium, and effective centers that can interact with the metallic surface. Because of their abundance of active regions, functional groups, and π-electrons, aromatic heterocyclics are among the most frequently employed materials as anticorrosion compounds.…”

Section: Introductionmentioning

confidence: 99%

Design of New Ecofriendly Schiff Base Inhibitors for Carbon Steel Corrosion Protection in Acidic Solutions: Electrochemical, Surface, and Theoretical Studies

Yousif,

Abdel Nazeer,

Fadel

et al. 2024

ACS Omega

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Corrosion poses a significant problem for several industrial sectors, inducing continuous research and development of corrosion inhibitors for use across a wide range of industrial applications. Here, we report the effectiveness of three newly developed Schiff bases derived from amino acids and 4-aminoacetophenone, namely, AIP, AMB, and AImP, as environmentally friendly corrosion inhibitors for Q235 steel in hydrochloric acid using electrochemical and surface analyses, in addition to theoretical techniques. The electrochemical findings of potentiodynamic polarization (PDP) demonstrated that the explored compounds serve as mixed-type inhibitors and can effectively suppress steel corrosion, with maximal protection efficiencies of 93.15, 96.01, and 77.03% in the presence of AIP, AMB, and AImP, respectively, at a concentration of 10 mM. The electrochemical impedance spectroscopy (EIS) and polarization results confirmed the growth of a durable protective barrier on the steel surface in the existence of the inhibitors, which is responsible for decreasing the metallic dissolution. Results were further supported by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), UV−vis, and Fourier transform infrared (FTIR), which ascribed the development of inhibitor−adsorption films on the steel surface. The results of EDS and XPS analyses demonstrated the existence of the distinctive elements of the inhibitors on the metallic surface. Furthermore, density functional theory (DFT) calculations and Monte Carlo (MC) simulations showed the electronic structure of the examined inhibitors and their optimized adsorption configurations on the steel surface, which helped in explaining the anticorrosion mechanism. Finally, the theoretical and experimental findings exhibit a high degree of consistency.

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Insight into the corrosion mitigation performance of three novel benzimidazole derivatives of amino acids for carbon steel (X56) in 1 M HCl solution

Abstract: Three organic molecules having benzimidazole were synthesized and used for protection of carbon steel (X56) from corrosion in 1.00 M HCl. They showed a maximum protective efficiency range between 95% and 98% indicating high corrosion inhibition.

Cited by 25 publications

References 84 publications

Synthesis and applications of novel Schiff base derivatives as corrosion inhibitors and additives for improvement of reinforced concrete

Synthesis and applications of novel Schiff base derivatives as corrosion inhibitors and additives for improvement of reinforced concrete

Synthesis and Mechanism of Co²⁺/Sr²⁺ Codoped Magnetic Lanthanum Cuprate with Excellent Corrosion Resistance

Design of New Ecofriendly Schiff Base Inhibitors for Carbon Steel Corrosion Protection in Acidic Solutions: Electrochemical, Surface, and Theoretical Studies

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Insight into the corrosion mitigation performance of three novel benzimidazole derivatives of amino acids for carbon steel (X56) in 1 M HCl solution

Abstract: Three organic molecules having benzimidazole were synthesized and used for protection of carbon steel (X56) from corrosion in 1.00 M HCl. They showed a maximum protective efficiency range between 95% and 98% indicating high corrosion inhibition.

Cited by 25 publications

References 84 publications

Synthesis and applications of novel Schiff base derivatives as corrosion inhibitors and additives for improvement of reinforced concrete

Synthesis and applications of novel Schiff base derivatives as corrosion inhibitors and additives for improvement of reinforced concrete

Synthesis and Mechanism of Co2+/Sr2+ Codoped Magnetic Lanthanum Cuprate with Excellent Corrosion Resistance

Design of New Ecofriendly Schiff Base Inhibitors for Carbon Steel Corrosion Protection in Acidic Solutions: Electrochemical, Surface, and Theoretical Studies

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Synthesis and Mechanism of Co²⁺/Sr²⁺ Codoped Magnetic Lanthanum Cuprate with Excellent Corrosion Resistance